"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
-----
Cleaning Pennies with Juices
Q. Can you help me form a hypothesis with apple, orange, and grape juice cleaning pennies?
Kaelly
- Tucson, Arizona, The U.S.
2002
A. Sure, Kaelly. A hypothesis is an assumption that you wish to demonstrate or disprove by experiment. So, between what you already know about apple juice, orange juice, grape juice, and pennies; and your intuition and gut feelings, give us a statement that you think is probably true, but do not know for sure if it's true, and which you think should be provable or disprovable by an experiment which you can do. Voila, you have formed an hypothesis.
So what do you think is probably true, but you do not know for sure if it's true, and you think you can prove or disprove by experiment?
Please see our F.A.Q. on the subject.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2002
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: